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Production of AB5 materials from spent Ni-MH batteries with further tests of hydrogen storage suitability
Chalmers Univ Technol, Dept Chem & Chem Engn Nucl Chem & Ind Mat Recyclin, S-41296 Gothenburg, Sweden..
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Oorganisk kemi.ORCID-id: 0000-0002-8690-9957
Chalmers Univ Technol, Dept Chem & Chem Engn Nucl Chem & Ind Mat Recyclin, S-41296 Gothenburg, Sweden..
Chalmers Univ Technol, Dept Chem & Chem Engn, S-41296 Gothenburg, Sweden..
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2022 (Engelska)Ingår i: Journal of Power Sources, ISSN 0378-7753, E-ISSN 1873-2755, Vol. 539, artikel-id 231459Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

A novel approach for the reuse of rare earth (REE) elements generated during hydrometallurgical processing of Ni-MH batteries as alternative sources is provided to valorize Ni-MH batteries wastes. The production of AB5-based alloys from spent Ni-MH waste was thoroughly investigated. The REE elements were recovered as a mixture in oxalate form and annealed at 900 °C to obtain a single-phase REEs oxide REE2O3. Citrate gel and glycine nitrate processes followed by the Ca reduction process under H2 atmosphere were used to produce the AB5 alloys. The alloys were successfully produced, and their crystal structure and morphology have been studied using X-ray diffraction (XRD), scanning electron microscopy (SEM) with supporting energy-dispersive X-ray (EDS) analysis. Nanoparticles with a size of 173±3 nm and 150±8 nm were observed using transmission electron microscopy (TEM) for CG and GNP alloys. Studied samples were subjected to hydrogenation, and the structural changes were depicted.

Ort, förlag, år, upplaga, sidor
Elsevier Elsevier, 2022. Vol. 539, artikel-id 231459
Nyckelord [en]
Spent NiMH batteries, Hydrometallurgy, Rare earth mixture, Citrate gel, Glycine nitrate process, AB5 based alloy, Hydrogenation
Nationell ämneskategori
Materialkemi
Identifikatorer
URN: urn:nbn:se:uu:diva-478634DOI: 10.1016/j.jpowsour.2022.231459ISI: 000808885800002OAI: oai:DiVA.org:uu-478634DiVA, id: diva2:1677697
Forskningsfinansiär
Forskningsrådet Formas, 2017-00637Stiftelsen för strategisk forskning (SSF), EM16-0039ÅForsk (Ångpanneföreningens Forskningsstiftelse), 16-406SweGRIDS - Swedish Centre for Smart Grids and Energy StorageEnergimyndighetenTillgänglig från: 2022-06-28 Skapad: 2022-06-28 Senast uppdaterad: 2024-01-15Bibliografiskt granskad

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Shtender, VitaliiSahlberg, Martin

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Shtender, VitaliiEbin, BurcakSahlberg, MartinPetranikova, Martina
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